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HT48R10A Datasheet(PDF) 5 Page - Holtek Semiconductor Inc

Part # HT48R10A
Description  8-Bit Microcontroller
PDF  42 Pages
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Manufacturer  HOLTEK [Holtek Semiconductor Inc]
Direct Link  http://www.holtek.com
Logo HOLTEK - Holtek Semiconductor Inc

HT48R10A Datasheet(HTML) 5 Page - Holtek Semiconductor Inc

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Symbol
Parameter
Test Conditions
Min.
Typ.
Max. Unit
VDD
Conditions
IOH
I/O Port Source
Current
3.3V VOH=0.9VDD
-2
-4
¾
mA
5V VOH=0.9VDD
-5
-10
¾
mA
RPH
Pull-high Resistance
3.3V
¾
40
60
80
kW
5V
¾
10
30
50
kW
VLVR
Low Voltage Reset
¾ 3.3V option
2.7
3.0
3.3
V
A.C. Characteristics
Ta=25°C
Symbol
Parameter
Test Conditions
Min. Typ. Max. Unit
VDD
Conditions
fSYS1
System Clock
(Crystal OSC)
3.3V
¾
400
¾
4000 kHz
5V
¾
400
¾
8000 kHz
fSYS2
System Clock (RC OSC)
3.3V
¾
400
¾
4000 kHz
5V
¾
400
¾
8000 kHz
fSYS3
System Clock (Internal RC)
3.3V
3.2MHz option
1600
2500 3500 kHz
5V
2000
3200 4500 kHz
fTIMER
Timer I/P Frequency (TMR)
3.3V
¾
0
¾
4000 kHz
5V
¾
0
¾
8000 kHz
tWDTOSC Watchdog Oscillator
3.3V
¾
43
86
168
ms
5V
¾
36
72
144
ms
tWDT1
Watchdog Time-out Period
(WDT OSC)
3.3V Without WDT
prescaler
11
22
43
ms
5V
9
18
37
ms
tWDT2
Watchdog Time-out Period
(System Clock)
¾
Without WDT
prescaler
¾
1024
¾
tSYS
tWDT3
Watchdog Time-out Period
(RTC OSC)
¾
Without WDT
prescaler
¾
7.812
¾
ms
tRES
External Reset Low Pulse
Width
¾¾
1
¾¾
ms
tSST
System Start-up Timer
Period
¾
Wake-up from
HALT
¾
1024
¾
tSYS
tINT
Interrupt Pulse Width
¾¾
1
¾¾
ms
HT48R10A-1
Rev. 1.20
5
July 2, 2001



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